Buttons - Navien NCB300-28K Service Manual

4.4.2 Buttons

Using the buttons on the front panel, you can turn on or off the boiler,
monitor the current operation status, and set the values required
for the boiler's operation, such as central heating and DHW supply
temperatures. Refer to the following table for detailed information.
a
c
e
Menu button
Access to the Main menu screen.
Info button
Access the boiler information.
Minus button
Decreases the temperature setting,
parameter or moves down.
a
b
c
Eco button
b
Turn the boiler DHW preheat on or off.
Plus button
d
Increases the temperature setting,
parameter or moves up.
Power button
f
Turns the boiler on or off.
Reset the boiler during an error.
d
e
f
System Details 27